The spring extends by $x$ on loading, then energy stored by the spring is :(if $T$ is the tension in spring and $k$ is spring constant)
The spring extends by $x$ on loading, then energy stored by the spring is :(if $T$ is the tension in spring and $k$ is spring constant)
$\frac{{{T^2}}}{{2k}}$
$\frac{{{T^2}}}{{2{k^2}}}$
$\frac{{2k}}{{{T^2}}}$
$\frac{{2{T^2}}}{k}$
The spring extends by $x$ on loading, then energy stored by the spring is :(if $T$ is the tension in spring and $k$ is spring constant)
$U = \frac{{{F^2}}}{{2k}} = \frac{{{T^2}}}{{2k}}$
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